Rainwater Harvesters must add minerals to their tanks.
Here's why: The effects on rainwater harvesting (for domestic use) are significant for those living downwind of the eruption.
Increased levels of acidity for rainfall events are mainly due to the elevated sulfur emissions (presenting as sulfuric acid) as well as additional concentrations of carbonic acid. Acidic rain will eat through brass releasing lead into the water.
An eruption started at Kilauea Volcano, Halema'uma'u Crater